Title:
BOTTLE FOR CARBONATED BEVERAGE, AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3409300
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a bottle for carbonated beverage made of a polyethylene terephthalate resin having an equal structure as a traditional bottle for lemonade wherein a narrowed section is provided at an intermediate section of the bottle, and its manufacturing method.
SOLUTION: On the die main body of a die for biaxially draw-blow molding, movable dies 6a and 6b which correspond with a narrowed section, and can approach/separate from each other, are provided, and under a state wherein the movable dies are separated, a parison made of a polyethylene terephthalate resin is inserted in the die main body, and is drawn in the axial direction by a drawing rod 81, and at the same time, after a primary blowing is performed, the movable dies 6a and 6b are made to approach, and a secondary blowing of a higher pressure is performed, and thus, the dimension of the narrowed section is made smaller than the outer diameter of the parison, and an interference between the parison and the die is prevented from occurring, and in addition, a sufficient elongation percentage in the longitudinal and lateral directions is obtained, and by setting an average thickness of the narrowed section at 0.8-2.5 mm, a bottle for lemonade made of PET, having an actually usable strength, is obtained.
More Like This:
Inventors:
Noriyoshi Sahara
Application Number:
JP5512099A
Publication Date:
May 26, 2003
Filing Date:
March 03, 1999
Export Citation:
Assignee:
Sahara Chemical Industry Co., Ltd.
International Classes:
B65D1/02; B29C49/12; B29C49/16; B29C49/18; B29C49/48; B65D1/00; B65D1/09; B65D23/00; B67B1/00; B29K67/00; B29L22/00; (IPC1-7): B29C49/18; B29C49/48; B65D1/09; B65D23/00
Domestic Patent References:
| JP5689923A | ||||
| JP5682222A | ||||
| JP35538Y2 |
Attorney, Agent or Firm:
KAWASAKI Maki